Sheet-metal-edging machine.



A. l. TOWNSEND. SHEET METAL EDGING MACHINE.

APPucATloN FILED MAY 2s. 19H.

A Patented Jan. 2l, 1919.

2 SH EETS-SHEET l.

A. l. TOWNSEND.

SHEET METAL EDGING MACHINE. APPLICATION man MAv2s.191z.

- 1,292,157. lPatented Jan. 21,1919. f j Y y zsnEETs-SHEET 2.

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' lmwwto' ARTHUR J'. TOWN SEND, 0F CANTON, OHIO, ASSIGNOR TO THE NATIONAL PRESSED STEEL v COMPANY, OF MA-SSILLON, OHIO, CORPORATION OF OHIO.

SHEET-METAIf-EDGIN G MACHINE.

Specification of Letters Patent.

Patented Jan. 21, 1919.

Application led May 26, 1917. Serial No. 171,115.

To all whom it may concern.' y

Beit known that I, ARTHUR J. TowNsEND, a citizeniof the United States, residing at Canton, in the county of Stark and State of Ohio, have invented a new and useful Sheet-MetalEdging Machine, of which the following is a specification.

This invention relates to sheet metal edging machines and has more especial referthe mill or smoothing the sheared edges of sheets or strips which have been sheared or slit, removing the spurs which are usually formed upon the edges of the product by means of the shears, which spurs have been found to quickly damage the dies and rollsI used to form sheet metal.

The object ofthe present invention is to provide a machine of this character which will quickly and easily round or smooth the ed es of rolled sheets or strips.

further object is the provision of a niachine of this character which may be easily and readily adjusted to accommodate sheets or strips of varying .widths A still furthenobject is to provide a machine of this character which Will be simple and inexpensive to manufacture and which will be durable 'and etcient in use.

'iWith these objects inview the invention consists in the novel construction and arrangement of parts, hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the forni, proportions, size and minor details of construction may be made within the scope of the appended claims, without departing from vthe spirit or sacriicing any of the advantages of the invention.

In the accompanying drawing:

Figure 1 is a side elevation of a machine embodying my invention.

Fig. 2 is a top plan view of the same.

Fig. 3 is'a section on the line 3-3, Fig. 2.

Fig. 4 is a side elevation upon an enlarged scale of a portion of a modified forni of the device. l

Fig. 5 is a top plan view of the saine.

Fig. 6 is a cross section through a sheet showing vthe fins which are formed thereon by the. shears or slitting machines.

Fig. 7 is a cross section through a sheet which has had the corners trimmed in the edging device.

Fig. 8 is a cross section through a sheet which has had slightly rounded in the device.

Fig. 9 is a cross section through a sheet which has had the edges trimmed to a half round in the edging device.

Similar numerals of reference indicate corresponding parts throughout the several figures of the drawings.

'Referring more especially to the construction illustrated in the accompanying drawings, tlie numerals 1-1 and 2 2, indicate spaced pairs of standards between each pair of which are journaled the upper and lower feed rolls 3 and 4 respectively, said feed rolls being for the purpose of passing the the longitudinal edges machine as will be hereinafter described.

Suitable bearings 5 and 6 are provided for the upper and lowerrolls respectively.

table 7 is supported between the standards ll and 2-2, and adjustably mounted upon said table is the mechanism which smootlis or rounds the edges of the sheet. The table 7 is provided with two opposite, transversely disposed pairs of guide ribs 8 and mounted between each pair of guide ribs is a plate 9, cach of said plates being of the same construction. A slot l0 is provided in cach plate, said slots being transversely disposed with reference to the device and a screw or bolt 11 is located through each slot and through a suitable aperture in the table 7 thus adjustably mounting the plates 9 upon the table 7 for slidable adjustment between the ribs 8.

Mounted upon each 0f the plates 9 is an upwardly disposed bracket 12, each of said brackets carrying a vertically disposed bearing 13 at its upper extremity. a short shaft 14 being journaled in each bearing. A milling cutter 15 is iixedly mounted upon the upper extremity of each shaft and a worin wheel 1G upon the lower extremity thereof, said worm wheel meshing with the transversely disposed worm screw 17 journaled in suitable bearings 181 which are mounted upon the table 7 iii anysuitable and well known manner, said worm having right. and lcfthand threads.

be operated 5 vmovement of the sheet such as shown in always remaining in mesh d The guide rails 27 'the' worm screw 1'? ,strip lof the arrow cutters rotated in the direction of the arrows For the purpose of driving the feed rolls haft 19 of a pulley 18 ismounted upon the s each upper feed roll and suitable gears 20 are provided upon` each adjacent upper and lower feed rolls, said gears arranged to mesh in order to drive said rolls in unison to pass the. sheets or plates, indicated by the nu'- meralll, therethrough. ln order to rotate which turns the worm wheel 16 operating the milling cutters 15, a pulley. 22 is providedupon one extremity o said worm screw.- The usual belts may be applied to each ol the'pulleys and connecte to any suitable source ot motive power. From the above description it will be seen that a device" is provided through which rolled sheets or strips may be automatically passed and which will automatically round yor smooth the longtiudinal ledges of the or sheets as vthey are passed 'between the milling cutters. lt will be, oi' course, understood that the milling cutters should in the reverse direction from the Fig. 2 in which the sheet is moved in the direction shown thereon and the milling shown upon said milling cutters. also be seen that the milling cutters are easily and Areadily adjustable toward or away from each other to accommodate sheets or plates `of varying widths, and owing to the arrangement of the wormwheels 16 which mesh with the worm screw 17 these milling cutters may be operated at any desired adjustment, it only being necessary to loosen the screws 11 and slide the plates 9 within the guide ribs 8, the worm wheels 6 with the worm screw 17 as said plates are moved, thus always holding the worm wheels in operative connection to the worm screw.

For the purpose of guiding throughthe feed rolls adjustable 23 are mounted at the forward extremity oi the machine, each rail being provid with a slotted member 24, a bolt v25 passing through said slotted member and through a suitable bracket 26 which is carried by the adjacent standard 1. ln order to gui sheets through the milling cutters a channel shaped guide rail 27 is carried at the front and rear of each millin the sheets cutter, said guide rails being connected to t e bearings or brackets which support the bearings of the milling cutters by means of suitable brackets 28. are thus adjustable with the milling cutters, in order to be always set to receive sheets of the width for which the milling cutters yare set.

Figs. 4 and 5 `show a-modied form olf the device in which a pair of milling cutters are arranged to engage each side edge of the sheet, one of said cutters being arranged to engage the upper tively guide rails de the v scribed, the upper and the other cutter -the maaier f lower corner of the .which the cutters contact. This form of the device is best adapted' for trimming the sheets in the manner shown in Figs. and 8 of the drawings where just the corners o the sheet are removed or where a'slightly rounded edge is given' the sheet. .The numeral 7 indicates edging vdevice is mounted, said table being provided, with the transversely dispose pairs of guide ribs 8', the plates 9 being mounted for slidable adj said guide ribs.' Slots 10. are each plate, said slots being-transversely `disposed with reference to the device anda screw or bolt 11v is located between each slot and through the table 7 thus adjustably mounting the plates 9 ble'. for

pair of spaced vertically edge of the vsheet,"-vvith the' table upon which the stment between provided .in

disposed bearings 13 and 13 short shafts 14 and 14 respecbeing journaled 1n said bearings. The milling cutters 15 and 15',l are mounte upon the upper extremities of the-shafts 14 and 14 respectively, the milling cutter 15 being arranged to engage the upper portion of the longitudinal edge ofthe sheet and the milling cutter 15 to engage the lower portion thereof and worm'wheels 16 and 16 respectively are mounted upon the lower ex tremities of said shafts,said worm wheels meshing screws 17 screws are arran ters 15 and 15 either by the of construction shown in the drawings or by any other suitable arrangement. As shown in the drawings, adrive ranged upon the shaft 19 of the worm screw 17' and pulleys 20 and 20 are mounte upon the shafts 19 andv 19 respectively, said pulleys being connected by a cross belt 29 in-order to cause the worms 17' and 17 to be rotated in opposite directions and thus since the worms are located upon opposite sides of the worm wheels the milling cutters will both be driven in the same direction.

Fig. 6 shows the sheet 21 as it appears and 17 respectively, which worm both in the same direction,

after coming from the shears or sheet slitting y y machine, the fins 30 being tins' cause consid.-

' erable damage to the rolls and diesv such as ordinarily used for forming sheet metal an it is in order to remove these riins from the edges of the sheets'that Fig. 7 shows the sheet after it has been passed through the edging device above deand lower corners of the longitudinal edges o the sheetbeing beveled as shown 'at 31. This result is best accomlished with the form of thejdevice shown in Figs. Il and 5 and is obtained by adjustwith the transversely disposedged to drive the milling cut' pulley 18 is arthis device is used.

mechanism and 'arrangement sheets cutters so that they will just contact with t e upper andlower corners of the side edges of the sheet just removing these corners and with the corners the fins 30 shown in Fig. 6. Of course, if desired, just one milling cutter such as the one indicated by the numeral 15 only the lower corner upon each side edge. Fig. 8 shows a cross section of another form of edge which may be produced by the form of the device shown in Figs. 4 and 5 of the drawings or by the form shown in Figs. 1 to 3 inclusive with the cutting edges of the milling cutters formed on a larger radius, a slightly rounded edge 32 being formed upon the sheet.

ing the milling this edge bein best produced by the form of the device sown in Figs. l to 3 inclusive of the drawings.

Although the drawings and above specifi.-

cat-ion disclose the best mode in which I have contemplated embodying my invention I desire to be not limited to the details of such disclosure, for, in the further practical application of my invention, many changes in form and construction may be made, as circumstances require or experience suggests, without departin from the spirit of the invention, within 51e scope of the appended claims.

I claim 1. In a sheet metal edging mach-ine, means for automatically passing sheets or strips through said machine and spaced, horizontal, rotating cutters to trim the edges of the or strips as they are passed through the machine.

2. In a sheet metal edging machine, means for automatically passing sheets or strips through said machine, spaced, horizontal, rotary cutters arranged to trim the edges of the sheets or strips as they rare ,'passed through the machine and means for rotating said cutters in a direction opposite to 'the movement of the sheets.

3. In a sheet metal edging machine, means may be used to removel Fig. 9 shows the edges of the rsheet rimmed half round as indicated at 33,

for automatically passing sheets or strips through said machine, spaced, horizontal, rotating cutters arranged to trim the edges of the sheets or strip as they are passed through the machine and means for adjusting said cutters with reference to each other.

4. In a sheet metal edging machine, means for automatically passing sheets or strips through said machine, spaced, horizontal, rotary cutters arranged to trim the edges of the sheets or strips as they are passed through the machine, means for driving both of said cuttersinunison and means for adj usting said cutters with reference to each other without breaking the driving connection.

5. In a sheet metal edging machine, means for automatically passing sheets or strips through said machine, spaced, horizontal, rotary cutters arranged to trim the edges of the sheets or through the machine and a single driving -means for rotating both of said cutters in opposite directionvln unison.

6. In asheet metal edging machine, means for automatically passing sheets or strips through said machine, a rotatin worm .screw journaled transversely across said machine, a pair of plates mounted for sliding adjustment parallel to said worm screw, a Worm wheel mounted upon each plate and meshing with said worm screw and a rotary cutter operatively connected to each worm wheel.

7 In a sheet metal edging machine, means for automatically passing sheets or strips through said machine, spaced, horizontal, rotary cutters arranged to trim the edges of the sheets or strips as they are passed through the machine, means for driving both of said cutters inunlson, means for guiding the sheets between the cutters, and means for adjusting said cutters and guide means in unison without breaking the driving connection.

In testimony that I claim the above, I have hereunto subscribed my name.

ARTHUR J. TOWN SEN D.

strips as they are passed 

